About

ABOUT Summer Bunker

Summer Bunker is an integrated brand strategy and marketing agency founded by Sarah Costello and dedicated to connecting market-ready climate solutions to their most important audiences. 

Sarah taps her committed network of designers, writers, strategists, developers, and filmmakers to assemble the right team for each project.

By operating as a collective (under Sarah’s strategic and creative leadership) rather than as a traditional agency, Summer Bunker is able to provide high-touch, consistent account support and continuity while flexing to deliver the best possible experience and outcomes for each project.